People who have competed at Australian Brazilian jiu-jitsu and grappling events. Australia only, for now. See Australian BJJ rankings for recorded wins by belt, state, and ruleset.
| Ethan Roworth | Blue | Insight Jiu Jitsu Academy |
| Ethan Rubens | White | Fightcross MMA/Zenith |
| Ethan Ruddy | Blue | Fight Club Jiu-Jitsu team |
| Ethan Saunders | Unknown belt | Lemos Brazilian Jiu-Jitsu Academy |
| Ethan Smith | Blue | Absolute MMA |
| Ethan Smith | Blue | Absolute MMA |
| Ethan Solomon | Purple | Gracie Elite Australia |
| Ethan Solsky | White | ORIGEM JIU-JITSU |
| Ethan Stark | Blue | De Been 100% Jiu Jitsu |
| Ethan Suh | Grey | TEAM FALZON |
| Ethan Tat | White | Movement Martial Arts |
| Ethan Tian | White | SABJJ - Toyama Jiu Jitsu |
| Ethan Topp | White | BKR Jiu Jitsu SA |
| Ethan Trevaskis | White | Fortitude Jiu Jitsu |
| Ethan Turner | Grey | Infinity Brazilian Jiu JItsu Australia |
| Ethan Vette | Blue | Zenith Adelaide |
| Ethan Warwick | Grey | Garage Grappling |
| Ethan Waters | Yellow | Gracie Elite Australia |
| Ethan Webber | White | Gracie Barra Hornsby |
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